数据中心气流组织特性及节能改造方案研究

Research on air distribution characteristics and energy saving reform schemes of data center

针对数据中心机房由于机架上架率不同、气流组织分布不均匀等原因导致局部热点现象严重、末端空调设备长时间高负荷运行造成大量能耗浪费的问题,以夏热冬暖地区某数据中心机房为研究对象,利用CFD模拟软件,分析数据中心机房热环境温度场分布特征,利用机架冷却指数(RCI)、回风温度指数(RTI)、供热指数(SHI)及掺混指数(IOM)4种不同性能指标,评价3种不同节能改造方案的优劣。在此基础上,通过调节风柜频率,探讨不同供风量对机房热环境的影响。结果表明,提出的第三种方案能够有效改善机房热环境,减少供风能耗。

Taking a data center computer room in a hot summer and warm winter area as the research object,CFD simulation software was used to analyze its distribution characteristics of the thermal environment temperature field,and four different performance indicators were chosen to evaluate the advantages and disadvantages of three different energy-saving transformation schemes:frame cooling index(RCI),return air temperature index(RTI),heating index(SHI)and mixing index(IOM).On this basis,the influence of different air supply volume on the thermal environment of the machine room was discussed by adjusting the frequency of the air cabinet.The results show that the third scheme can effectively improve the thermal environment uniformity and reduce the energy consumption of air supply.